Vertex Top End Rebuild Kit - KTM 250 SX 03-04 66.36MM (V-22909C)

Vertex Top End Rebuild Kit - KTM 250 SX 03-04 66.36MM (V-22909C)

Marsoni

M251S

$151.55

Get it in 3 business days with 1 day shipping. Friday, May 29

Vertex Top End Rebuild Kit - KTM 250 SX 03-04 66.36MM (V-22909C)VERTEX TOP END REBUILD KITS Piston Kit Vertex pistons have an outstanding reputation for quality and performance. Each gravity cast piston is created with only premium aluminium alloys utilizing a 12 21% silicon content. The silicon content in Vertex pistons is crucial to the quality of the piston. Silicon is critical in decreasing thermal expansion which, when an engine reaches normal operating temperatures, can change the geometry of the piston.

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As another reviewer pointed out, the OEM paper filter is almost 3 times thicker than this one. All things equal, thicker would mean for filtering surface area. So with less filter media surface area, the filter would clog up quicker. However, since this is washable, maybe that's a moot point. I also noticed on my Hyundai Tucson, the rim of this filter must be slighter thicker because I had a tougher time clipping the filter box closed with this one installed. I am keeping my OEM for now, just in case.

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Reviewed in the United States on December 6, 2025

Verified Purchase

Nasir A.RAHMAN

Waukegan, US

★★★★★ 5

PhilTop engine filter 1/2 the price of K&N filter No difference

Not much difference than K&N filter But 1/2 the price 100% identical

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Reviewed in the United States on April 17, 2026

Verified Purchase

Julie

Omaha, US

★★★★★ 5

Perfect fit for my 2018 Civic—easy, affordable, and worth it

Size: 9.5" x 10.9" x 2.1"

I’ve bought this cabin air filter multiple times for my 2018 Honda Civic, and it’s consistently great quality. It fits perfectly and is super easy to install—takes just a few minutes to swap out, and I always do it myself. Way cheaper than going to a shop or dealership. The airflow is smooth, there’s no smell at all, and it keeps the inside of my car feeling clean and fresh. No weird odors, no dust blowing in—just a solid, dependable filter that does its job well. This is the only one I’ll keep buying.

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Reviewed in the United States on May 11, 2025

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Michael Howard

Grantham, US

★★★★★ 5

Do it mayne

Size: 9.5" x 10.9" x 2.1"

Good quality and fit but find it funny that the instructions with the air flow are on the side. I assume that would be facing out and was annoyed when I tried to close and it didn’t fit. Probably should have read the directions. Still would recommend

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Reviewed in the United States on March 8, 2026

Verified Purchase

Kcfangue

Chelsea, US

★★★★★ 5

Perfect fit, durable and affordable

Size: 9.5" x 10.9" x 2.1"

Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.

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Reviewed in the United States on November 3, 2025